* Kaunokirjallisuus
* _Fistful of Diamonds_ (1985)
* _The Last Dance_ (1987)
* _Night of the Stormrider_ (1990)
* _Wild Child_ (1993)
* _Red Angel_ (1996)
* _Seitsemäs trumpetti_ (1999)
* _King of Secrets_ (2002)
* _The Serpent Brotherhood_ (2005)
* _The Genesis Device_ (2008)
* _Lazarus-portti_ (2011)
* _Yloitettu_ (2014)
* _Shadowmancer_ (2017)
* Tietokirjallisuus
* _The Illustrated Encyclopedia of the American West_ (1989)
* _The American Frontier_ (1992)
* _The Dictionary of American History_ (1995)
* _The Encyclopedia of the American Revolution_ (1997)
* _The Encyclopedia of American Crime and Punishment_ (2000)
* _The Encyclopedia of the New Millennium_ (2003)
* _The Encyclopedia of the Old West_ (2006)
* _The Encyclopedia of American Law_ (2009)
* _The Encyclopedia of American History:A History of the United States from 1492 to Present_ (2012)
* Lastenkirjoja
* _The Brave Cowboy_ (1990)
* _The Runaway Train_ (1992)
* _The Lost Cat_ (1994)
* _The Magic Horse_ (1996)
* _The Amazing Dog_ (1998)
* _The Friendly Dragon_ (2000)
* _The Silly Monkey_ (2002)
* _The Clever Rabbit_ (2004)
* _The Busy Bee_ (2006)
* _The Happy Penguin_ (2008)